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African Owl
The African Owl is a breed of fancy pigeon developed over many years of selective breeding. They originated in Tunisia (Africa), and were imported into England during the 19th century. The breed is known for its short beak, which gives the breed the "Owl" name due to the size and shape. Description A breed of fancy pigeon developed by selective breeding, it has descended from the rock dove as with other types of domesticated pigeons; it is thought to have first been brought into Europe from Tunis, Africa, where the type originated and were first imported into England in the late 19th century. They were originally referred to as "Foreign Owls", as a similar type of pigeon had already been known in England, which upon the importation of the African Owl became known as the "English Owl". The main difference between the two types of owl was that the African or "Foreign" variety was noticeably smaller. As with other types of "owl" pigeons, the African Owl has a crest of feathers ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breed
A breed is a specific group of domestic animals having homogeneous appearance ( phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species. In literature, there exist several slightly deviating definitions. Breeds are formed through genetic isolation and either natural adaptation In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the ... to the environment or selective breeding, or a combination of the two. Despite the centrality of the idea of "breeds" to animal husbandry and agriculture, no single, scientifically accepted definition of the term exists. A breed is therefore not an objective or biologically verifiable classification but is instead a term of art amongst groups of breeders who share a consensus around what qua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fancy Pigeon
Fancy pigeon refers to any breed of domestic pigeon, which is a domesticated form of the wild rock dove (''Columba livia''). They are bred by pigeon fanciers for various traits relating to size, shape, color, and behavior, and often exhibited at pigeon shows, fairs and other livestock exhibits. There are about 800 pigeon breeds; considering all regional varieties all over the world there may be 1100 breeds. The European list of fancy pigeons alone names about 500 breeds. No other domestic animal has branched out into such a variety of forms and colours. Charles Darwin is known to have crossbred fancy pigeons, particularly the Ice Pigeon, to study variation within species, this work coming three years before his groundbreaking publication, ''On the Origin of Species''. Pigeon showing Pigeon fanciers from many different countries exhibit their birds at local, inter-state or national shows and compete against one another for prizes. One typical country show in Australia in 2008 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selective Breeding
Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together. Domesticated animals are known as breeds, normally bred by a professional breeder, while domesticated plants are known as varieties, cultigens, cultivars, or breeds. Two purebred animals of different breeds produce a crossbreed, and crossbred plants are called hybrids. Flowers, vegetables and fruit-trees may be bred by amateurs and commercial or non-commercial professionals: major crops are usually the provenance of the professionals. In animal breeding, techniques such as inbreeding, linebreeding, and outcrossing are utilized. In plant breeding, similar methods are used. Charles Darwin discussed how selective breeding had been successful in producing change over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunisia
) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa , image_map2 = , capital = Tunis , largest_city = capital , coordinates = , official_languages = Arabic Translation by the University of Bern: "Tunisia is a free State, independent and sovereign; its religion is the Islam, its language is Arabic, and its form is the Republic." , religion = , languages_type = Spoken languages , languages = Minority Dialects : Jerba Berber (Chelha) Matmata Berber Judeo-Tunisian Arabic (UNESCO CR) , languages2_type = Foreign languages , languages2 = , ethnic_groups = * 98% Arab * 2% Other , demonym = Tunisian , government_type = Unitary presidential republic , leader_title1 = President , leader_name1 = Kais Saied , leader_t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darwin Domestic 122
Darwin may refer to: Common meanings * Charles Darwin (1809–1882), English naturalist and writer, best known as the originator of the theory of biological evolution by natural selection * Darwin, Northern Territory, a territorial capital city in Australia Arts and entertainment * ''Darwin'' (1920 film), a German silent film * ''Darwin'' (2011 film), a documentary * ''Darwin'' (2015 film), a science fiction film by Alain Desrochers * Darwin (''seaQuest DSV''), a dolphin in the TV series ''seaQuest DSV'' * '' Darwin!'', a 1972 album by Banco del Mutuo Soccorso * '' Darwin: The Life of a Tormented Evolutionist'', a 1991 biography of Charles Darwin * Darwin (Marvel Comics), a fictional character in the Marvel Comics Universe associated with the X-Men * Darwin Watterson, a character from the 2011 TV series ''The Amazing World of Gumball'' Astronomy * 1991 Darwin, a main-belt asteroid * Darwin (lunar crater) * Darwin (Martian crater) * Darwin (spacecraft), a European Space Age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Dove
The rock dove, rock pigeon, or common pigeon ( also ; ''Columba livia'') is a member of the bird family Columbidae (doves and pigeons). In common usage, it is often simply referred to as the "pigeon". The domestic pigeon (''Columba livia domestica'', which includes about 1,000 different breeds) descended from this species. Escaped domestic pigeons have increased the populations of feral pigeons around the world. Wild rock doves are pale grey with two black bars on each wing, whereas domestic and feral pigeons vary in colour and pattern. Few differences are seen between males and females. The species is generally monogamous, with two squabs (young) per brood. Both parents care for the young for a time. Habitats include various open and semi-open environments. Cliffs and rock ledges are used for roosting and breeding in the wild. Originally found wild in Europe, North Africa, and western Asia, pigeons have become established in cities around the world. The species is abundant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunis
''Tounsi'' french: Tunisois , population_note = , population_urban = , population_metro = 2658816 , population_density_km2 = , timezone1 = CET , utc_offset1 = +01:00 , timezone1_DST = , utc_offset1_DST = , postal_code_type = Postal code , postal_code = 1xxx, 2xxx , area_code_type = Calling code , area_code = 71 , iso_code = TN-11, TN-12, TN-13 and TN-14 , blank_name_sec2 = geoTLD , blank_info_sec2 = .tn , website = , footnotes = Tunis ( ar, تونس ') is the capital and largest city of Tunisia. The greater metropolitan area of Tunis, often referred to as " Grand Tunis", has about 2,700,000 inhabitants. , it is the third-largest city in the Maghre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Pigeon Breeds
This is an alphabetical list of pigeon breeds. Pigeons and doves are members of the bird family Columbidae. Doves tend to be smaller and pigeons larger, although this distinction is not consistently applied. The birds listed here are breeds of the domestic pigeon (''Columba livia domestica''). Other Columbidae species (e.g., the domesticated Barbary dove, ''Streptopelia risoria'') have been developed into breeds, but these are generally simple colour variations. See also List of Columbidae species. A * Aachen Cropper (D/326)Entente Européenne d’ Áviculture et de Cuniculture (2012)''EE-List of the Breeds of Fancy Pigeons'' (ELFP) * Aachen Lacquer Shield Owl pigeon (= Aachen Luster Shield,Encyclopedia of Pigeon Breeds''List of Pigeon Breeds''/ref> ELFP-No. D/705; = Aachen Shield OwlNational Pigeon Association (2014)(table of contents by name)) * Aargae Peak-crested * Abu Abse-Dewlap (D/063) * African Owl pigeon (GB/710) * Agaran Pigeon (RUS(D)/893) * Alpine Swift pigeon * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pigeon Breeds
This is an alphabetical list of pigeon breeds. Pigeons and doves are members of the bird family Columbidae. Doves tend to be smaller and pigeons larger, although this distinction is not consistently applied. The birds listed here are breeds of the domestic pigeon (''Columba livia domestica''). Other Columbidae species (e.g., the domesticated Barbary dove, ''Streptopelia risoria'') have been developed into breeds, but these are generally simple colour variations. See also List of Columbidae species. A * Aachen Cropper (D/326)Entente Européenne d’ Áviculture et de Cuniculture (2012)''EE-List of the Breeds of Fancy Pigeons'' (ELFP) * Aachen Lacquer Shield Owl pigeon (= Aachen Luster Shield,Encyclopedia of Pigeon Breeds''List of Pigeon Breeds''/ref> ELFP-No. D/705; = Aachen Shield OwlNational Pigeon Association (2014)(table of contents by name)) * Aargae Peak-crested * Abu Abse-Dewlap (D/063) * African Owl pigeon (GB/710) * Agaran Pigeon (RUS(D)/893) * Alpine Swift pigeon * A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of North Africa
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. Birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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